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Date: Wed, 26 Apr 2023 19:31:45 +0200
From: Solar Designer <>
Subject: Re: Birthday paradox

On Wed, Apr 26, 2023 at 12:54:26AM +0200, Solar Designer wrote:
> I also notice that for PHT we actually perform two lookups currently:
> first for offset table, and then for hash table.  I guess the offset
> table is needed because it's not filled to 100%, so that less space is
> wasted (as the hash table's entries are larger)?  Well, you'd probably
> avoid that two-step process for PHT with tiny elements (fingerprints),

magnum, maybe you've already eliminated the need for the offsets table
by moving from 128-bit to 64-bit hashes in PHT?


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